Method for separation and purification of zeaxanthin from capsanthin
A technology for the separation and purification of zeaxanthin, which is applied in the direction of organic chemistry, can solve the problems of low yield, high cost, and high price, and achieve the effects of improving purity, safe and reliable use and consumption, and high purity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0032] 1) Carry out saponification reaction of capsanthin, ethanol, potassium hydroxide and vitamin E under nitrogen gas, saponify at 40°C for 8 hours to obtain saponified product; the mass ratio of capsanthin, ethanol, potassium hydroxide and vitamin E is 1: 0.25:0.75:0.05; Potassium hydroxide is added in the form of 45% potassium hydroxide aqueous solution;
[0033] 2) Add hydrochloric acid to the saponified product to adjust the pH to 7, and dilute it with a mixture of n-hexane-acetone-ethyl acetate (V / V, 8.5:1.5:0.15) that is 3 times the mass of capsanthin to obtain a saponified product dilution ;
[0034] 3) Pass the diluent of the saponified matter into the analysis column with 6 kg of XR15C macroporous adsorption resin inside, and the adsorption flow rate is 2BV / h; after the adsorption is completed, wash it with deionized water until it is colorless; Esters mixture solution (V / V, 8.5:1.5:0.15) was analyzed, the analysis flow rate was 1BV / h, and the zeaxanthin analysis ...
Embodiment 2
[0038] 1) Saponification reaction of capsanthin, ethanol, sodium hydroxide, and tert-butylhydroquinone under nitrogen gas, saponification at 45°C for 8.5 hours, to obtain saponified product; capsanthin, ethanol, sodium hydroxide, tert-butyl The mass ratio of hydroquinone is 1:0.2:0.8:0.04; sodium hydroxide is added in the form of an aqueous solution of sodium hydroxide with a mass percentage of 40%;
[0039] 2) Add acetic acid to the saponified product to adjust the pH between 7, and dilute it with a mixture of n-hexane-acetone-ethyl acetate (V / V, 8:1.7:0.13) that is 4 times the mass of capsanthin to obtain a diluted saponified product liquid;
[0040] 3) Pass the diluent of the saponified matter into the analysis column with 6 kg of XR919LZ macroporous adsorption resin inside, and the adsorption flow rate is 1.5BV / h; after the adsorption is completed, wash it with deionized water until it is colorless; Ethyl ester mixture (V / V, 8:1.7:0.13) was analyzed at an analysis flow ra...
Embodiment 3
[0044] 1) Saponification reaction of capsanthin, ethanol, potassium hydroxide, and vitamin E under the condition of nitrogen gas, saponification at 55°C for 8 hours, to obtain saponified product; the mass ratio of capsanthin, ethanol, potassium hydroxide, and vitamin E is 1: 0.3:0.7:0.06; Potassium hydroxide is added in the form of an aqueous solution of potassium hydroxide with a mass percentage of 50%;
[0045] 2) Add oxalic acid to the saponified product to adjust the pH between 7.5, and dilute it with a mixture of n-hexane-acetone-ethyl acetate (V / V, 9:1.3:0.17) that is 5 times the mass of capsanthin to obtain saponified product. liquid;
[0046] 3) Pass the diluent of the saponified substance into the analytical column with 6 kg of XR921H macroporous adsorption resin inside, and the adsorption flow rate is 2BV / h; after the adsorption is completed, wash it with deionized water until it is colorless; The ester mixture (V / V, 9:1.3:0.17) was analyzed at a flow rate of 1.5BV / ...
PUM
Property | Measurement | Unit |
---|---|---|
purity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com